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Environmental fate & pathways

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The following text is copied from the OECD SIDS document for sodium percarbonate (OECD 2006), section 2.2.4:

"For solid sodium percarbonate no transport to the air is expected because of the negligible vapour pressure. When sodium percarbonate is dissolved in water, it dissociates to sodium carbonate and hydrogen peroxide rather easily. The high water solubility and low vapour pressure indicate that sodium carbonate will be found predominantly in the aquatic environment (OECD, 2003). Volatilisation of hydrogen peroxide from surface waters and moist soil is expected to be very low, while it is expected to be highly mobile in soil (European Commission, 2003b). It can be concluded that the aquatic compartment is the main compartment for sodium carbonate and hydrogen peroxide."